Document 3QN6w1ZObnqVzgqrbdey32w3y

'Monsanto Monsanto Coirpt.-.y Ob N. Undbsr^h loulivird St. Loots. Missouri 33199 Plraao: OM> 694*1000 nun imp/w^ ** . * August 14, 1970 T> Dear Sir: You'have received our letters of February 27, 1970 and June 1, 1970 covering Monsanto's withdrawal of poly-' chlorinated biphenyls (PC3s) from the market. The February 27 letter reviewed some of the potential hazards" of PC3s and of environmental polution in general. The June 1 letter announced that we were withdrawing all poly chlorinated biphenyls-us.ed as plasticizers or modifiers from the market, and that the last shipment of these materials would be made August 30, 1970. In as much as you may have some inventory of these materials which you might be planning to use during the period in which you change over to other products, we felt it impera tive to inform you of the latest information concerning P05#v It was recently- brought to our attention that the Food and Drug Administration has apparently established guidelines setting forth suggested maximum levels of PCEs allowable in certain foods. These levels, as we understand them, are 5 parts per million in fish and 0.2 parts per million in milk. Monsanto, therefore, strongly recommends that FOB'S" hot be used in applications which could lead, either directly, or indirectly, to the contamination of food and water supplies for humans or animals. Examples of appli cations which would seem particularly hazardous would he coatings for water treatment facilities, coatings for food handling equipment, or coatings for such farm items as silos and feed hoppers. DSW 435304 31 STLCOPCB4088365 2 r i 1 In It has recently come to our attention that PCBs have been found in cows'milk. This adds emphasis to Monsanto's re commendation that PCBs not be used in any application*where they might come in contact with or otherwise contaminate food, silage, water supplies, etc". The latest available bulletin on our line of Aroclors- is enclosed for your use. This publication replaces and supercedes bulletin 0/PL-305 - Aroclor Plasticizers. . The only products listed"which will be sold after August 31, 1970 are l) Aroclor 1221, a monochlcrinated biphenyl which is readily biodegradable, and 2) . Aroclors 5*^2 and p46o, both-chlorinated terphenyls which have not shown themselves to be environmental contaminants. .Please pay special attetv- tion to the section c:\* this bulletin which relates to environmental hazards;*1 . In "addition to the products listed above which will remain on the- market, Monsanto will sell a series of blends of -Aroclor 1221 and Arodl-or.5^60 which will replace the poly chlorinated biphenyls for many applications.' . During this withdrawal of PCSs from the market, Monsanto has had in effect a modified returned goods policy stating that unopened containers less than one year old could be ' returned for full credit through July 31, 1970. Prom August 1 through August 31, 1970, 90 percent credit would be allowed. From September-1 through December 31, 1970, 50 percent credit would be allowed. The customer will pay all return freight. All of the dates in the time schedule for this returned goods policy are hereby extended an . additional two months. -- Monsanto realizes that the removal of these products from the market has caused a great deal of concern and expense . for our customers. This is certainly regrettable. However, it appears' to us that as a responsible supplier, this is I the only reasonable course of action, We stand ready to assist you as we can with your reformulation work. /dbw DSW 435305 Walter E. Schalk Director of Sales Plasticizers STLCOPCB4088366